Fan



July 12, 1927; 1,635,768

. D. RODGERS FAN Fi1ed Ma.v l7 1924 Patented July 12, 1927.

UNITED .srArEs PATENT OFFIC The a DOMINIQK"RODGERS, OF PITTSBURGH, PENNSYLVANIA.

Application filed lllay 17, 1924. Serial No. 714,174.

resent invention, relates to rotary fans of theventilating type, comprises the same subject matter as the abandoned application for Patent .Serial No. 526,361, filed December 31, 1921, by the present inventor,

and has more particularly to dowith the matter of increasing the field covered by the air discharged from the fan, said object being accomplished without the usual .alternate or rotarymovement of the motor, more fully explained, hereinafter.

as will be The means used to accomplish the above mentioned result consists in the use of fans provided with inwardly turned vanes, said vanes being connected to each other, and angularly disposed with reference to planes coincident with, and perpendicular to the axis of rotation of the fans themselves, as will be more clearly set out below.

In the usual ceiling fan as found in practical use in theaters, and otherpublic places,

the moto r is oftenin a spherical form, and

while the fans revolve continuously discharging the air from the fan, the motor itself revolves continuously, performing a complete the case revolution about its own axis. In of the present invention, a practically universal field of air discharge is formed by meansof the fan blades, without such a movement of the motor.

Inam

odification I have also shown a type of single blade fan which accomplishes a greater distribution of air without the alternate arcuate movement commonly used with ventilating table-fans in common use.

Another feature of the present invention relates to a specially arranged means for setting the fan in various positions; and still other features relate to ameans for simply connecting the fan blades used to each other,

same pre senting an advantageous feature of construction, both of said features being further elaborated upon in the specification.

In the accompanying drawings I have shown one complete example of the physical embodiment of my invention, and a modification, constructed according to the best mode I have so'far devised forthe practical applicati 7 tion.

on of the principles of my inven- In the drawings, Figure 1 is a side elevation of my improved fan.

Figure 2 is a front elevation of Figure 1 taken from the left of same.

Figure 3 is a side elevation of a modified form of my invention designed to supplant ghe ordinary table variety of ventilating an. I

Figure 4 is a type of my fan asapplied to a ceiling.

Figures 5 and 6 are diagrammatic views for the purpose of illustrating the angular, positions of the vanes of, invention.

Figure 7 isa view looking upward of an ordinary ceiling fan.

Figure 8 is a detail front view of the means used in attaching the blades of my fan to each other.

Figure 9 is a vertical section of Figure 8 on line 9 9.

Figure 10 is a detail front view of a locking means used in connection with my invention.

Figure 11 is a side view of Figure 10.

In the drawings thev numeral 1 indicates a fan constituting my invention, having the base 2, a stem 8, and within which is the pintle 4:. Surrounding the pintle 4, is the pipe 5, on the upper end of which is mounted the motor 6, the latter carrying on its shafts 7, 8 the fan blades 9, 10, and 11, 12 respectively. It is seen that the fan blades just mentioned each have a plurality of inwardly turned vanes, disposed angularly with reference to each other. The vanes are numbered 13, 14:, and each blade is also provided with the usual perpendicular vane represented by numeral 17. I

These vanes 13, 14, and 17 are connected to each other on each fan blade in orderto make up a complete blade as is readily understood. The vanes 17 17 are perpendicular to a plane which is parallel to the axis of rotation of the blades as seen from Bigures 1 and 5 of the drawings, in which 24 is the axis of rotation, and 23 a plane perpendicular thereto.

These vanes 17, 17 have a flat or cutting portion 19, and a flared portion 20 as is usual and common to most fans of the, type under consideration. The ones Lil, ll, have similar flat portions 1 and llared portions 22 as shown, and are angnilarly disposed with reference to the plane :23 which is perpendicular to the axis of rotation ill, as shown in Figure 5, said ligure corresponding diauraunuatically to u'urc l of the drawing. It is l'urther evidmit that said vanes 13, let, are also 2l't1,.1't1l21l'l v' disposed with reference to a plane 525, which is coincident with the axis of rotation ill. as shown diagrarnniatically in nig'ure (l, which corresponds to Figure It is seen that the lower half portion of the fan blade ll shown in Figures 1. and 2 is indicated by the *anes 13, 1d and 17 of Figures and (5. 'llhe l igures 1 and 2 also very cltlitl'ly il ustrate the angle lar disposition of the said vanes lil, l-l, with reference to both planes :23 and just described.

The purpose of l1tt\i1l,{1' the runes oi the fan blades 9. 10, ll, if constructed as dcscribed is or course to increase o rcatly the held of action of air distribution. without using hardly any increase ol' power. "the arrows of Figure 1 and Figure l; indicate the direction of discharge cl? air from the fans, and an ahn st uuiri iield ol tltll\- cry is. provided by lllj llli'tllthul. and with out bod nlotiou ot the motor 2b.. as is usually done with ceiling fans ot' the type shown in Figure "l in which the arrow iudicates the revolution of the motor 26 carrying the usual fan blades 2?,

The discharge oi air from a lau such as 538 just described is moreover merely in a single direction which is parallel with the axis of rotation of the lun blades 21', 2?, while the present invention shown by Figure t produces a practicall 'r urir rl field of air discharge without the lEYHll ion of the motor Again in connection with the type o't tan shown in Figure 53. same practically acoinplishes as good an air delivery as the ordinarv alternate motion tan which is thrown from side to side. and so well known; and this is accomplished ll thi present invention without uiorciuei'it ot the motor 29. The fan blades 9. l and ll. 1.:2 are fastened to each other as shown in Fig;- ures 8 and 9 in detail. the blade ll cut at 30, 30, and the end St is returned upon the other companion blade to as shown: while the blade 10, is similarly' cut at 3:2. lit. and the ends 33, Eli-l, returned upon the l h in a reverse direction. This method curing each pair ot blade: loorlhol. has proven Very simple and cllicient tor the purpose in hand.

The base :2 bel'ore i'i'ientioned has an up ward extension all on which is mounted a union-like part 35 provided with a shoulder 36, and as shown in Figures 1d. ll. the pipe which revolves on pintle -ltinds an abutment against said shoulder 36. Preterably mounted pivotall; at 2-37 in the part is the locking lever 38 which is adapted to engage in a series ol? slots 39, el-O, etc. termed in the end oi the pipe The said locking lever may be :lirictionally held in position, or any well known equivalent means may be used to hold it in either cl? the positions ll, or 42. It is evident from the above that the motor 6 may be moved around on the pintle d by nerely disengaging the lever 38, and placing same in another of the slots 4L0, 41, etc. as desired, thus divertingthe field of air discharge in any preferred direction. This is a more important feature in the ty 3c of fan shown in Figure 3 which is a modification of the fan of Figures 1 and 2, in which an inclined pintle -13 is used, though a vertical one may also be used with the single tan type of the present invention.

it elaimz 1. In adevice of the character described, a. plurality of fan blades, each having a number of vanes provided with a flat and a liaring portion, and said vanes being angular-1y disposed with reference to planes parallel with, and perpendicular to, the axis of rotatiion.

2. In a rotary fan, a pair ot' revoluble :t'ans mounted in opposed relation to each other, each composed 01 a series of vanes disposed in various angular relations with respect to planes parallel with, and at rig-tit angles to, the axis of rotation; a supporting base having a pintle formed thereon, a pipe rcvolubly carried on the pintle, a plurality of slots in the revolublc pipe, and a loch: lever pivotally mounted in the supporting base, adapted to lockingly engage the coinplcuientary slots of the said pipe, and prevent revolution of the fans about the fan base.

3. In a rotary fan, a fan blade having a rune in aplane perpendicular to its axis of rotation, and a 'llurality of vanes each haw ing a flat and a flaring portion formed there on, and angularly disposed with reference to planes parallel with, and perpendicularto, the axis of rotation.

t. In a rotary tan, a pair oi? opposed tans, each composed of a Il'tlll'll'lGl of blades. the vanes 01 which each have a flat and a t'lariilg portion, and are disposed in a phi-- rality of angular relations with reference to the axis of rotation, and each blade baring a vane perpendicular to the axis of rotation.

5. In a rotary fan a pair of opposed .1, each composed of a number of vanes havin a flat and a flaring portioi'r ilorlned thereon, said vanes being disposed in a plurality of angular relations with reference to the axis 0t rotation.

G. In a tan, a number of fan blades, each provided with a number of anes havn r a Hat and a flaring portion, and angular-1y disposed with reference to planes parallelwith and perpendicular to the axis of rotation;

revoluble pipe, and a locking lever pivotally mounted in the base, adapted to engage the complementary slots in said pipe to prevent 10 revolution of the motor and fan blades about the aforesaid pintle.

In testimony whereof I aflix my signature.

DOMINICK RODGERS. 

